Free ForeverNo SignupWorking Capital AdjustmentsUpdated 2026

Cash Flow Calculator

Calculate operating cash flow from net income โ€” and understand how working capital movements affect your actual cash position.

Operating cash flow (OCF) measures the actual cash generated by business operations. Unlike net profit, OCF accounts for non-cash charges (depreciation) and timing differences from working capital changes (when cash is collected vs when revenue is recognised). A business can be profitable on paper but cash-negative โ€” or vice versa.

Bottom-line profit (can be negative for loss-making businesses)

$

Non-cash charge added back to net income

$

Positive = AR increased (cash not yet collected). Negative = AR decreased (cash collected from prior period).

$

Positive = AP increased (suppliers not yet paid, good for cash). Negative = AP decreased (cash paid out).

$

Total revenue for the period โ€” used to calculate OCF margin

$

The Formula

OCF = Net Income + D&A โˆ’ ฮ”Accounts Receivable + ฮ”Accounts Payable

In plain English

Start with net income. Add back non-cash depreciation and amortisation. Subtract increases in accounts receivable (cash not yet collected). Add increases in accounts payable (cash not yet paid).

Worked Example

Net income: $200K. D&A: $50K. AR up $30K. AP up $10K. OCF = $200K + $50K โˆ’ $30K + $10K = $230,000.

Why OCF Differs from Net Profit

Net profit is an accounting measure; operating cash flow is a cash measure. Three categories of adjustments bridge them: (1) Non-cash charges โ€” depreciation and amortisation are expenses on the income statement but don't consume cash; (2) Working capital timing โ€” revenue recognised before cash is collected increases AR (bad for cash); (3) Accrued liabilities โ€” expenses recognised before they're paid increase AP (good for cash).

For SaaS businesses, OCF often differs dramatically from net income due to annual contract prepayments. A SaaS company that bills annually collects 12 months of cash upfront but only recognises one month of revenue โ€” making OCF much stronger than net income in high-growth periods.

SaaS Cash Flow Advantage

SaaS companies billing on annual prepayments create deferred revenue โ€” cash collected before it's recognised as revenue. This makes OCF systematically higher than net income during growth periods. This is a significant advantage: the business is self-funding its growth from future revenue collected today. It's why SaaS businesses often require less capital than their net losses suggest.

Three Types of Cash Flow

The cash flow statement has three sections: Operating (cash from core business), Investing (cash from buying/selling assets and investments), and Financing (cash from debt and equity). OCF is the most important โ€” it measures whether the business generates cash from its core activity.

A healthy business generates positive OCF. It may have negative investing cash flow (buying equipment) and negative financing cash flow (repaying debt) while still net-positive overall. The danger is a business with negative OCF funded by equity raises โ€” this works only as long as investors continue to fund it.

20โ€“25%

Target OCF margin for mature SaaS

+ D&A

OCF typically > net income by D&A add-back

Annual

SaaS prepayments boost OCF vs net income

FCF

OCF minus CapEx = free cash flow

Operating Cash Flow Margin Benchmarks (2026)

OCF MarginAssessmentTypical ProfileSignalStatus

25%+

ExcellentProfitable mature SaaSStrong self-funded growth

15โ€“25%

HealthyProfitable growth stageSustainable reinvestment

5โ€“15%

ThinEarly profitabilityWatch working capital

0โ€“5%

MarginalNear breakevenFragile cash position

Negative

ConsumingGrowth / pre-profit stageNeeds external funding

Source: SaaS Capital 2025 ยท Bessemer Venture Partners State of the Cloud 2025

Common Mistakes

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Confusing net profit with cash flow

Profitable businesses can run out of cash if they grow receivables faster than collections. Fast-growing companies that invoice on net-60 terms can be cash-negative even with strong profit margins. Always monitor OCF alongside net income.

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Ignoring working capital in growth projections

As revenue grows, AR typically grows proportionally โ€” each month of new revenue is not yet collected. A company doubling revenue may need significant cash to fund the AR build-up before collections catch up. This is the "growth trap" that catches many profitable companies off guard.

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Not distinguishing operating from non-operating cash

An asset sale (investing cash flow) or a loan (financing cash flow) can make total cash look positive even when operating cash flow is negative. Always evaluate OCF in isolation to understand whether the core business generates cash.

Frequently Asked Questions

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